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首页> 美国政府科技报告 >Computing the light distribution in turbid media for different scattering and absorption coefficients from a single Monte Carlo simulation
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Computing the light distribution in turbid media for different scattering and absorption coefficients from a single Monte Carlo simulation

机译：通过单个蒙特卡罗模拟计算混浊介质中的光分布以获得不同的散射和吸收系数

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摘要

We present a method that use a single Monte Carlo simulation (modelling the light distribution in a turbid media) to obtain a set of results for different optical coefficients. This approach eliminates the repetition of simulations for each different parameters. It is based on an adequate formulation of the radiance, expressed as a function of two probability distributions. The first depends only on the phase function and the geometry, while the second one depends only on the optical coefficients. This procedure required the storage of the number of collisions and the total pathlength of each photon. An example of the applicability of this method is shown, for which an important spare of computer time has been achieved. The main drawback of the method is a loss of convergence which limits its applicability. This effect is discussed as a function of the optical coefficients.

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